Find the exact circular function value.
-$\sin \frac { 3 \pi } { 4 }$
A) $- \frac { 1 } { 2 }$
B) $\frac { \sqrt { 2 } } { 2 }$
C) $- \frac { \sqrt { 2 } } { 2 }$
D) $\frac { 1 } { 2 }$

Name: Find the exact circular function value. -$\sin \frac { 3 \pi } { 4 }$ A) $- \frac { 1 } { 2 }$ B) $\frac { \sqrt { 2 } } { 2 }$ C) $- \frac { \sqrt { 2 } } { 2 }$ D) $\frac { 1 } { 2 }$
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Question

Quizplus · Accepted Answer

$\sin \frac { 3 \pi } { 4 }$ is in the second quadrant where sine is positive, and its value is $\frac { \sqrt { 2 } } { 2 }$.

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Find the Exact Circular Function Value $\sin \frac { 3 \pi } { 4 }$